Vegetative Variety

Helianthus salicifolius Autumn Gold

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Data is gathered from our West Grove, Pa., trials (Zone 6a). Southern growers: expect 1-2 weeks earlier finishing. Northern growers: 1 week slower. Consider summertime scheduling accurate. Dates based on a standard 72 liner size.

Week color desired
URC stick week
Liner transplant week
(1 ppp)
Helianthus salicifolius Autumn Gold
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Propagation Guide
Media EC/pH: EC 0.80 mmhos/pH 5.8-6.2
Soil Temperature: 70-74°F (21-23°C)
Rooting Hormone: 500 ppm IBA
Mist: Low
Fertilization: Feed at 100 ppm N after 9 days
Pinching: Pinch once shoots elongate for best branching.
Transplanting: 35-42 days after sticking
Comments: Typically remove from propagation area after two weeks. Don't keep rooting media excessively wet. Use long-day lighting when propagating when day length is less than 12 hours.
Finishing Guide
Media pH: 5.8-6.2
Temperature: 55 to 70°F (13 to 21°C)
Light Level (fc): 5,000 to 8,000
Vernalization: No
Daylength: Short day obligate
Watering: Low to moderate
Fertilization: Use a balanced fertilizer at a rate of 150 ppm N.
Pinch After Transplant: Typically not necessary if plants were pinched in the liner.
Plant Growth Regulators: PGRs generally not needed
Pests and Fungal Diseases: Very pest and disease resistant.